Art of making articles from sheet metal.



L. R. N. CARVALHO.

ART OF MAKING ARTICLES FROM SHEET METAL. APPHCATION man mm. [8.1%]!3.

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LESLIE R. N. CARVALHO, OF BROOKLYN, NEW YORK, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO PARAGON METAL CAP COMPANY OF BROOKLYN, NEW

CORPORATION OF NEW YORK,

YORK, it

Specification of Letters Patent.

Patented Nov. 2?, llllllll't.

Application filed January 18, 1913. Serial No. 7465.850.

To all whom it may concern:

Be it known that I, LESLIE R. N. GAR- VALHO', residing at Brooklyn, in the county of Kings and State of New York, have in vented certain new and useful Improvements in the Art of Making Articles from Sheet Metal, of which the following is a specification.

This invention relates to the art of manufacturing closures for receptacles such as bottles and the like, and the particular object of this invention is to provide an im proved method for use in the manufacture of such closures.

Heretofore closures for bottles having small necks, such as ordinary ketchup bottles and the like, have been formed of an integral structure comprising a disk and a deep body portion pressed or drawn thereon. From the very nature of such manufacture it has been practically impossible to provide the body portion of these closures with any ornamentation such as would be printed or painted upon the surface thereof before drawing, because of the fact that. in the operation of pressing or drawing the deep body portions the paint or ink coating would be mutilated or otherwise defaced.

I am aware that closures for receptacles having larger openings, such as jars and the like, have been formed of a two-part struc-- ture, the disk portion being formed independently of the body, but in such structures the body has invariably been readily detachable from the disk. In fact its ready detach ability has been the salient feature of the structure and has been designed to enable the easy removal of the closure from the jar. The structure has depended upon its attachment to and the presence of a jar to retain the body in a fixed position relatively to the disk, that is to say, the body and disk of two-part closures have not heretofore been of themselves locked together in immovable relation.

The object of the present invention is to provide a method for the manufacture of a two-part closure which method is simple and inexpensive, and which will result in the production of closures at small cost, and wherein the disk portion and body portion are immovably locked together to form a substantial structure.

Referring to the drawings wherein are nular edge portion shown in Fig. 2 is turned inwardly to form an inwardly projecting flange upon the upper end of the tube.

Fig. 5 represents a transverse sectional view of the same for better illustrating the nature and form of the part in this step; and also represents the further step of introducing the 7 disk portion of the closure into the tube or body portion thereof.

Fig. 6 represents a perspective view of the disk portion of the closure.

Fig. 7 represents a further step, which consists in pressing corrugations or other similar indentations into the walls of the tube or body portion of the structure for locking the disk portion in fixed relation, this view illustrating a completed closure, and,

Fig. 8 represents a transverse vertical sectional view taken through the structure shown in Fig. 7 the figure being considerably enlarged for illustrating the manner in which the indentations formed in the walls of the body portion engage against the edge of the disk portion for locking the two parts together.

Referring to the drawings for a more de tailed description of the method employed herein, the numeral 1 indicates the blank from which the body portion is formed. This blank is provided with cut-away portions 2 at its upper opposite corners for a purpose presently apparent.

After the blank has been formed as shown in Fig. 1, it is rolled or bent into cylindrical shape as in Figs 2 and 3, and its abutting edges are locked together aS indicated at 3 in Fig. 3. This lock or seam 3 may be formed in any desired manner within the spirlt of this invention, but it is preferably lid formed by bending over the end portions of the blank along the lines indicated at 4: in Fig. l to form grooves or pockets into which the ends of the blank mutually engage in a well-known manner. The cut-out portions 2 of the blank provide an annular part 4 at the upper end of the tube which is not seamed together, as clearly seen in Fig. 2.

The blank is now subjected to an operation wherein the annular part 4 is turned inwardly to form a flange 5, as seen in Fig. 4.

Obviously the seam 3 could be carried throughout the length of the tube if deslred, but its presence would result in the objectionable formation of an additional thickness in the flange 5, which additional thickness is readily avoided by notching the blank at 2 as illustrated.

The disk portion of the structure is now provided and this comprises a simple diskshaped member havin its marginal edge turned down into preferably a diagonally projecting rim 6, the greatest diameter of which is just sufficient to permit the passage of the disk between the walls of the tube. The upper or outer surface of the disk may be provided with any suitable printing, painting, or other design.

While the tube is in the condition illustrated in Fig. 4:, withits walls smooth, the

disk is inserted between said walls until the outer surface of the disk engages the inner surface of the flange portion 5 of the tube, such position being indicated in full lines in Fig. 5.

With the disk thus positioned within the tube, the structure is subjected to a further operation wherein the walls of the tube are formed with struck-in portions 7 adapted to engage the edge of the rim 6 of the disk as most clearly indicated in Fig. 8 of the drawing. The struck-in portions 7 referred to may preferably comprise corrugations which will serve the additional purpose of providing a desirable hand-grip exteriorly of the tu e.

In this operation, or in a subsequent operation if desired, that portion of the tube which is not corrugated or otherwise formed with the indentatlons 7 for retaining the disk, is formed with threads of a well known type, adapted for engaging threads formed on a receptacle to which the closure may be attached, and through the medium of which the closure may be readily removed when desired.

It will be noted that in the formation of the indentations 7 the material of the tube will be caused to press against the downturned rim portion 6 of the disk, as at 8, and produce a wedge-like action forcing the disk into tight contact with the flange 5 andthus rigidly locking the disk between the indentations and said flange. The engagement of the material of the tube at 8 with the disk subsequently forming said tu may in some cases produce a mutilation or bending of the edge of the disk, and such mutilation or bending will serve to increase the rigidity of the attachment or connection between the disk and tube. (See Fig. 8.) The down-turned portions 6 of the disk, when sprung inwardly by forced engagement of the relatively inclined upper ends of the corrugations of the tube, comprise relatively resilient portions having a camlike action on the inclined surface of the upper end of the corrugations constantly tending to wedge the disk upwardly toward the flange 5.

By this method of manufacture I am enabled to print or otherwise impress upon the outer surface of the disk and body portion of the product any desired ornamentation, either printed or otherwise, without fear of its mutilation or defacement in the process of finishing the article. The projection of the flange 5 beyond the surface of the disk also serves to protect its ornamentation against defacement by contact with foreign objects. This advantage is articularly noticeable by reason of the re atively small diameter of the closure.

It is to be understood that various changes may be resorted to in the form and composition of the several parts utilized in carrying out this invention and in the manner of executing the several steps thereof, and hence I do not intend to be limited to the details herein shown and described except as they may be specifically included in the claims.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. The art of manufacturing a receptacle closure, which consists in providing a tube, flanging in one end of said tube to form a shoulder within said tube, providing a disk having a resilient portion, inserting said diskwithin said tube to engage said shoulder, and subsequently corrugating the walls of said tube to form a hand grip thereon and to arrange said corrugations so as to form relatively inclined portions adapted to be engaged by the resilient portion of said disk to cam said disk against said shoulder.

2. The art of manufacturing a receptacle closure. which consists in providing a blank, rolling said blank into a tube, turning in one end of said tube to form a flange partially closing said end, inserting a member within said tube from the opposite end of said tube into engagement with the inner surface of said flange for further closin said end, and e with means spaced inwardly from the-flange for engaging said member to positively lock said member in fixed position against the inner fsurface of said flange.

'3. The art of manufacturing a receptacle closure, which consists in providing a blank, complete the closure of the first end, and cutting away portions of the ends of said subsequently striking in cam-like portions blank, rolling said blank into cylindrical of said tube to engage said disk for camlning formation, seaming together the remaining said disk against the flange of the tube.

end portions of said blank to form a tube In testimony whereof, I aflix my signature 15 open at both ends and seamed for part only in the presence of tWo Witnesses.

of its length, flanging in the unseamed por- LESLIE R. N. CABVALHO. tion of said tube to partially close one end Witnesses: of said tube, inserting a disk within said L. Gnssronn HANDY,

10 tube from the opposite end of the tube to NATHALIE THOMPSON. 

